Note 14 - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Aug. 28, 2022	May 29, 2022
Derivative assets	$ 12.2	$ 7.0
Deferred compensation assets	7.2	7.5
Available-for-sale debt securities	7.8	7.6
Total assets	27.2	22.1
Derivative liabilities	1.0	2.2
Deferred compensation liabilities	72.4	72.6
Total liabilities	73.4	74.8
Available-for-sale debt securities	7.8	7.6
Fair Value, Inputs, Level 1 [Member]
Derivative assets	9.6	5.7
Deferred compensation assets	7.2	7.5
Available-for-sale debt securities	0.0	0.0
Total assets	16.8	13.2
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	72.4	72.6
Total liabilities	72.4	72.6
Available-for-sale debt securities	0.0	0.0
Fair Value, Inputs, Level 2 [Member]
Derivative assets	2.6	1.3
Deferred compensation assets	0.0	0.0
Available-for-sale debt securities	0.0	0.0
Total assets	2.6	1.3
Derivative liabilities	1.0	2.2
Deferred compensation liabilities	0.0	0.0
Total liabilities	1.0	2.2
Available-for-sale debt securities	0.0	0.0
Fair Value, Inputs, Level 3 [Member]
Derivative assets	0.0	0.0
Deferred compensation assets	0.0	0.0
Available-for-sale debt securities	7.8	7.6
Total assets	7.8	7.6
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	0.0	0.0
Total liabilities	0.0	0.0
Available-for-sale debt securities	$ 7.8	$ 7.6